Improvement in driving-powers for spinners



UNrren Srarns Parenti* Ormea,

MOSES G. HUBBARD AND ANDREW J. SMITH, OF SYRAOUSE, NEW YORK.

IMPROVEMENT EN DRIVING-POWERS FOB. SPINNEPLS.

Specification forming part of Letters Patent No. $23757, dated February24, 1863.

To all whom it 10i/ay concern,.-

Be it known that we, Mosns G. HUBBARD and ANDREW J. SMITH, of the cit-yof Syracuse, in the State of New York, have invented certain new anduseful Improvements in Driving-Powers for Spinners, 85e. 3 and we dohereby declare and ascertain the same as follows, reference being had tothe accompanying drawings, for illustrating the same.

As the driving-wheel in our improved apparatus may revolve in ahorizontal or any other plane, as may be most convenient, we will, forthe purpose of rendering our description more readily understood,describe it as being in a horizontal position. In this position Figure 1represents a side view. Fig. 2

represents a top View.

The principal object of our invention is to obtain a self-adjustingpressure upon the speeded shaft or spindle C, so that whatever degree oftwist is being given to the yarn, or whatever may be the resistance, thepressure of the driving-rims G and E and driving-roller d will at alltimes bear a proper proportion to the resistance to drive the spindle (lwith suicient certainty. One of these driving surfaces being on one sideof the spindle or shaft O, and moving in one direction, while the otherdriving-surface (being driving-roller d) is on the other side ofthespindle or shaft O, and moving in a direction opposite to the directionin which the rstnamed driving-surface is moving, causes the spindle ershaft O to revolve, just as a pencil will :revolve when pressed betweenthe two hands, and the hands moved in opposite directions; but thenature of our discovery or invention consists in causing the pressure ofthe drivin gsurfaces to increase or diminish in proportion to theresistance vof the spindle or speeded shaft C. When we have oncediscovered and demonstrated practically that this can be done, the wayswhich may be adopted for applying our invention are so numerous that wewill only allude to a few by way of illustrating more fully and plainlythe nature of our invention.

For several styles of spinners, and otler light and highly-speededmachinery, we pre fer to construct the driving-wheel as illustrated inFigs. l and 2, which is composed of two rims, (marked G and E in Fig. l,which is a side view, and in Fig. 2, E is a top view, of one oftheserims.) rPhese two rims may be sus pended on a main shaft in anyconvenient manner, so that at least one of them will be free to movetoward the other. These two rims are connected by three lor more shortparallel bars, P P P2, extending from one to the other, one end of eachof these parallel bars being hinged or pivoted to one of these rims, andits opposite end is hinged or pivoted to the other rim, so that the tworims are thus connected by the parallel bars in a manner similar to aparallel rule. Between the two rims G and E we locate the driving-rollerd and the spindle or shaft O to be speeded.

Iftthe rim G is located permanently on the main shaft, the driving-roller d and the spindle O should be free vertically, which may beeffected by oblong journal-bearings, or ordinary sliding journalboxes,so that the spindle may be free to be pressed down against the rim G,and the driving-roller d may be pressed down against the spindle O bythe rim E.

Now, if the power be applied to the main shaft or to the rim G, so as tocause said rim G to revolve, the resistance of spindle O Will at firstcause the rim G to slip on the under side of spindle (l until theadvancing movement of rim G by means of the bars P P Pz draws the rim Edown with increased force against the roller d, and the roller d, beingfree, is thus forced down against the upper side of vspindle O, and thusthe spindle C is drawn down against the rim G with sufficient force toprevent it from slipping. Thus by the action of the said resistance ofspindle O and the driving-power operating together the rim E would bedrawn down toward the rim G, and the driving-roller d would thus bepressed down against the spindle O, and at the same time would press thespindle C, down against the rim G 5 or, in other words, all of thedrivingsurfaces would thus be pressed together with a force proportionedto the resistance of spindle O. The proportion which this pressure wouldbear to the resistance of spindle O would depend upon the angle of thebars P P P2, and this angle should depend upon the material of which thedriving-surfaces are made. 1f iron is used for the driving-surfaces, apressure of four pounds on the driving-surface will overcome aresistance of one pound, so that the bars P P P2 should stand at anangle of four to one 5 or, in other words, they should extend acrossfrom one rim to the other on a slant of about one-fourth of their ownlength. When this form of driving-Wheel is used in a vertical position,it might require a slight elastic force by means of a spring arranged insome conA venient manner, so as to lightly press the driving-surfacestogether in order to start the bars P P P2 into operation; but when thisform of drive-Wheel is used in a horizontal position (as We have nowsupposed it to be for the more plain illustration of our invention) theWeight of rim E,pressing down upon the drivin g-roller 1, will at alltimes insure the requisite contact of all the driving-surfaces to bringthe connecting-bars P P P2 into operation, and after the saidconnecting-bars begin to operate, the force with which they will pullthe drivingsurfaces together will be proportioned to t-he resistance ofshaft C.

Our invention may be still further ascertained by supposing theconnecting-bars P P P2 entirely removed and the rim E connected to themain shaft by spokes having a long hub in their center, and a thread cutin this hub (at about the same angle at which the previcusly-describedconnecting-bars were 1ocated) and a corresponding screw-thread cut onthe main shaft, so that the action of the power When applied to the mainshaft or rim G would be to draw the rim E toward the rim G by means ofsaid screw. This arrangement would not be quite as perfect in itsoperation as the previously-described connecting-bars, but would developthe same results, in causing the resistance of spindle C to operatetogether With .the drivin g-power in producing or increasing thepressure of the driving surfaces together.

Various other modes may be readily adopted by any ordinary mechanicskilled in constructing such machinery, While our invention is notlimited to any one of the many convenient Ways in which it may beapplied, but consists, principally, in so constructing and arranging theparts as to bring the resistance and driving-power into joint operationin producing the necessary pressure on the drivin g-surfaces, and making said pressure self-adjustin g. Some such arrangement seems desirablefor the success of frictional driving where the resistance is variable,as it constantly is in spinning and several other kinds of lightmachinery, because without it a uniform pressure equal to therequirements of the greatest amount of resistance would be constantlynecessary, which would wear out the drivin g-surfaces so quickly'as torender it too expensive to keep in repair.

Having thus fully described our invention, what we claim therein as newand desire to secure by Letters Patent, is-

The consruction and arrangement of the parts in such manner as toproduce or increase the pressure on the shaft U by its own resistanceand the driving-power, operating together, for the purposessubstantially as set forth.

M. G. HUBBARD.

Witnesses: ANDREW J. SMITH.

GEORGE BARTON, S. R. ToMLrNsoN.

